This section is from the book "The Golden Age Cook Book", by Henrietta Latham Dwight. Also available from Amazon: Golden Age Cook Book.
Beat six eggs, the yolks to a cream, the whites to a stiff froth, add three tablespoonfuls of warm milk to the yolks and then beat into the whites of eggs. Put a small tablespoonful of butter in a spider, when it is hot turn the eggs into it, stirring gently all the time until the eggs are well set; let it brown, fold and turn out on a hot platter.
Follow the recipe for plain omelet; while it is cooking stir in three tablespoonfuls of grated Parmesan cheese and finish as above.
Make an omelet as in preceding recipe. Have a quarter of a pound of fresh mushrooms chopped fine and cooked until tender in a little butter and their own juice, seasoned with salt and pepper, and add hot to the omelet just before folding it.
A cup of tomatoes, the water drained from them, cooked and seasoned with pepper and salt, a teaspoonful of onion juice, and one of green pepper chopped very fine; have it hot and add to the omelet iust before folding it.
 
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